Diskette storage unit



FIG. 1 is a top, front, and left side perspective view of a diskette storage unit showing my new design;

FIG. 2 is a bottom, rear and right side perspective view thereof; and,

FIG. 3 is another top, front, and left side perspective view thereof showing one storage drawer in an open position. 

The ornamental design for a diskette storage unit, as shown and described. 